DynoJet Power Commander V

I am looking to get a new exhaust system therefor a power commander. Can someone inform me about the difference between the Power commander 5 and the PTI version? I understand the PTI is designed for Forced induction. however my 2011 busa is not turbo charged, but maybe in the future. Would it affect negatively if i purchased the PTI version instead of the original if i am not running a turbo? I figured if it wouldn't harm i should upgrade to the PTI in case i do install a turbo in the near future.

Also, would the auto tuner, Ignition module, and secondary fuel module be beneficial on the 2011 busa? i understand some of those appliances aren't for all types of bikes.